The Complete Guide to AWS Lambda Aliases, Versions, and Canary Deployments (With CDK Examples)
Deploying a new Lambda code to your AWS environment shouldn’t be stressful at all, but for some teams, it is. If you ever pushed a quick fix to production and straight away went to CloudWatch logs to see if the Lambda is failing, you know the feeling. When updating the Lambda code, it happens instantly. If there is a bug in the new code, every user feels it straight away.
That’s why tools like Lambda Versions, Aliases and Canary Deployments come in. When used correctly, they give you a way of rolling out new code changes gradually, observing the impact and automatically starting the roll back process if something happens.
No downtime. No fire drills. No late-night debugging sessions.
In this guide, you'll learn:
What Lambda versions and aliases actually do
How traffic routing works
How Cod…
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